V596 Pup is a detached eclipsing binary containing two A1V stars in a 4596-d-period orbit with a small eccentricity and apsidal motion, previously designated as VV Pyxidis. We use new light-curves from the Transiting Exoplanet Survey Satellite (TESS) and published radial velocities to determine the physical properties of the component stars. We find masses of 2098 +0021 M-(R) and 2091 +0018 M-(R), and radii of 2179 +0008 R-(R) and 2139 +0007 R-(R).The measured distance to the system is affected by the light from a nearby companion star; we obtain 1784 + 25 pc. The properties of the system are best matched by theoretical predictions for a subsolar metallicity of Z = 0010 and an age of 570 Myr. We measure seven significant pulsation frequencies from the light-curve, six of which are consistent with delta Scuti pulsations and one of which is likely of slowly-pulsating B-star type.
This broad interest text describes how our current understanding of the interiors of the stars came about, beginning in 1870. It starts by discussing the development of our knowledge of the inside of the Sun, and continues on to compare the Sun's and other stars' properties and then discusses how stars form, evolve, and die. The book describes the properties of a variety of stars with special characteristics, and it ends with a discussion of the first stars that formed after the Big Bang. Aiming to show how interesting scientific investigations can encourage young men and women to pursue STEM careers, this book also underscores the role women have played in the development of our understanding. Key features • Includes the stories of the historical advances that have led to our current understanding of the nature of the stars • Underscores the important roles women have played in the development of this understanding • Avoids the use of technical jargon and clearly defines the terms used • Identifies some of the key questions that remain unresolved at the time of writing
I AM residing in tropical Queensland, lat. 21° S., and consequently am not likely to see any auroral phenomena, particularly in the middle of our hot and rainy season; but last night between 8 and 9 P.M. there occurred the following remarkable appearances, which were seen by me and several others.
